“The HT 208 is a two-way design featuring an 8″ mid/woofer (which, although the material is not specified, seems to be made of polypropylene) and a 1″ metal dome tweeter. The tweeter is mounted in what Genelec calls a Directivity Control Waveguide�. It’s basically metal plate which sets the tweeter a little deeper into the cabinet, creating a slight horn-loading effect. This not only squeezes more efficiency from the tweeter, the Genelec website notes that “the improved directivity control reduces the reflected sound at the listening position…”